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  <title>The DOMNode class</title>
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 <h1 class="title">The DOMNode class</h1>
 
 
 <div class="partintro"><p class="verinfo">(PHP 5, PHP 7, PHP 8)</p>
 

 
  <div class="section" id="domnode.synopsis">
   <h2 class="title">类摘要</h2>
 

   <div class="classsynopsis">
    <div class="ooclass">
     
    </div>

    <div class="classsynopsisinfo">
     <span class="ooclass">
      <span class="modifier">class</span> <strong class="classname">DOMNode</strong>
     </span>
     {</div>

    <div class="classsynopsisinfo classsynopsisinfo_comment">/* 属性 */</div>
    <div class="fieldsynopsis">
     <span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">string</span>
      <var class="varname"><a href="class.domnode.html#domnode.props.nodename">$<var class="varname">nodeName</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="type">?</span><span class="type"><span class="type">string</span><span class="type"></span></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.nodevalue">$<var class="varname">nodeValue</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">int</span>
      <var class="varname"><a href="class.domnode.html#domnode.props.nodetype">$<var class="varname">nodeType</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">?</span><span class="type"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span><span class="type"></span></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.parentnode">$<var class="varname">parentNode</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type"><a href="class.domnodelist.html" class="type DOMNodeList">DOMNodeList</a></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.childnodes">$<var class="varname">childNodes</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">?</span><span class="type"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span><span class="type"></span></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.firstchild">$<var class="varname">firstChild</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">?</span><span class="type"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span><span class="type"></span></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.lastchild">$<var class="varname">lastChild</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">?</span><span class="type"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span><span class="type"></span></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.previoussibling">$<var class="varname">previousSibling</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">?</span><span class="type"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span><span class="type"></span></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.nextsibling">$<var class="varname">nextSibling</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">?</span><span class="type"><span class="type"><a href="class.domnamednodemap.html" class="type DOMNamedNodeMap">DOMNamedNodeMap</a></span><span class="type"></span></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.attributes">$<var class="varname">attributes</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">?</span><span class="type"><span class="type"><a href="class.domdocument.html" class="type DOMDocument">DOMDocument</a></span><span class="type"></span></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.ownerdocument">$<var class="varname">ownerDocument</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">?</span><span class="type"><span class="type">string</span><span class="type"></span></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.namespaceuri">$<var class="varname">namespaceURI</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="type">string</span>
      <var class="varname"><a href="class.domnode.html#domnode.props.prefix">$<var class="varname">prefix</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">?</span><span class="type"><span class="type">string</span><span class="type"></span></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.localname">$<var class="varname">localName</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">readonly</span>
     <span class="type">?</span><span class="type"><span class="type">string</span><span class="type"></span></span>
      <var class="varname"><a href="class.domnode.html#domnode.props.baseuri">$<var class="varname">baseURI</var></a></var>;</div>

    <div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="type">string</span>
      <var class="varname"><a href="class.domnode.html#domnode.props.textcontent">$<var class="varname">textContent</var></a></var>;</div>


    <div class="classsynopsisinfo classsynopsisinfo_comment">/* 方法 */</div>
    <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><a href="domnode.appendchild.html" class="methodname">appendChild</a></span>(<span class="methodparam"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span> <code class="parameter">$node</code></span>): <span class="type"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span>|<span class="type"><span class="type false">false</span></span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.c14n.html" class="methodname">C14N</a></span>(<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">bool</span> <code class="parameter">$exclusive</code><span class="initializer"> = <strong><code>false</code></strong></span></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">bool</span> <code class="parameter">$withComments</code><span class="initializer"> = <strong><code>false</code></strong></span></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">?</span><span class="type"><span class="type">array</span><span class="type"></span></span> <code class="parameter">$xpath</code><span class="initializer"> = <strong><code>null</code></strong></span></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">?</span><span class="type"><span class="type">array</span><span class="type"></span></span> <code class="parameter">$nsPrefixes</code><span class="initializer"> = <strong><code>null</code></strong></span></span><br>): <span class="type"><span class="type">string</span>|<span class="type"><span class="type false">false</span></span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.c14nfile.html" class="methodname">C14NFile</a></span>(<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">string</span> <code class="parameter">$uri</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">bool</span> <code class="parameter">$exclusive</code><span class="initializer"> = <strong><code>false</code></strong></span></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">bool</span> <code class="parameter">$withComments</code><span class="initializer"> = <strong><code>false</code></strong></span></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">?</span><span class="type"><span class="type">array</span><span class="type"></span></span> <code class="parameter">$xpath</code><span class="initializer"> = <strong><code>null</code></strong></span></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">?</span><span class="type"><span class="type">array</span><span class="type"></span></span> <code class="parameter">$nsPrefixes</code><span class="initializer"> = <strong><code>null</code></strong></span></span><br>): <span class="type"><span class="type">int</span>|<span class="type"><span class="type false">false</span></span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.clonenode.html" class="methodname">cloneNode</a></span>(<span class="methodparam"><span class="type">bool</span> <code class="parameter">$deep</code><span class="initializer"> = <strong><code>false</code></strong></span></span>): <span class="type"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span>|<span class="type"><span class="type false">false</span></span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.getlineno.html" class="methodname">getLineNo</a></span>(): <span class="type">int</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.getnodepath.html" class="methodname">getNodePath</a></span>(): <span class="type"><span class="type">?</span><span class="type">string</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.hasattributes.html" class="methodname">hasAttributes</a></span>(): <span class="type">bool</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.haschildnodes.html" class="methodname">hasChildNodes</a></span>(): <span class="type">bool</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.insertbefore.html" class="methodname">insertBefore</a></span>(<span class="methodparam"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span> <code class="parameter">$node</code></span>, <span class="methodparam"><span class="type">?</span><span class="type"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span><span class="type"></span></span> <code class="parameter">$child</code><span class="initializer"> = <strong><code>null</code></strong></span></span>): <span class="type"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span>|<span class="type"><span class="type false">false</span></span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.isdefaultnamespace.html" class="methodname">isDefaultNamespace</a></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$namespace</code></span>): <span class="type">bool</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.issamenode.html" class="methodname">isSameNode</a></span>(<span class="methodparam"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span> <code class="parameter">$otherNode</code></span>): <span class="type">bool</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.issupported.html" class="methodname">isSupported</a></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$feature</code></span>, <span class="methodparam"><span class="type">string</span> <code class="parameter">$version</code></span>): <span class="type">bool</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.lookupnamespaceuri.html" class="methodname">lookupNamespaceUri</a></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$prefix</code></span>): <span class="type">string</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.lookupprefix.html" class="methodname">lookupPrefix</a></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$namespace</code></span>): <span class="type"><span class="type">?</span><span class="type">string</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.normalize.html" class="methodname">normalize</a></span>(): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.removechild.html" class="methodname">removeChild</a></span>(<span class="methodparam"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span> <code class="parameter">$child</code></span>): <span class="type"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span>|<span class="type"><span class="type false">false</span></span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="domnode.replacechild.html" class="methodname">replaceChild</a></span>(<span class="methodparam"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span> <code class="parameter">$node</code></span>, <span class="methodparam"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span> <code class="parameter">$child</code></span>): <span class="type"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span>|<span class="type"><span class="type false">false</span></span></span></div>

   }</div>

 
  </div>
 

  <div class="section" id="domnode.props">
   <h2 class="title">属性</h2>
   <dl>
    
     <dt id="domnode.props.nodename"><var class="varname">nodeName</var></dt>

     <dd>

      <p class="para">Returns the most accurate name for the current node type</p>
     </dd>

    
    
     <dt id="domnode.props.nodevalue"><var class="varname">nodeValue</var></dt>

     <dd>

      <p class="para">
       The value of this node, depending on its type.
       Contrary to the W3C specification, the node value of
       <span class="classname"><a href="class.domelement.html" class="classname">DOMElement</a></span> nodes is equal to <a href="class.domnode.html#domnode.props.textcontent" class="link">DOMNode::textContent</a> instead
       of <strong><code>null</code></strong>.
      </p>
     </dd>

    
    
     <dt id="domnode.props.nodetype"><var class="varname">nodeType</var></dt>

     <dd>

      <p class="para">Gets the type of the node. One of the predefined <a href="dom.constants.html" class="link">XML_xxx_NODE constants</a></p>
     </dd>

    
    
     <dt id="domnode.props.parentnode"><var class="varname">parentNode</var></dt>

     <dd>

      <p class="para">The parent of this node. If there is no such node, this returns <strong><code>null</code></strong>.</p>
     </dd>

    
    
     <dt id="domnode.props.childnodes"><var class="varname">childNodes</var></dt>

     <dd>

      <p class="para">
       A <span class="classname"><a href="class.domnodelist.html" class="classname">DOMNodeList</a></span> that contains all
       children of this node. If there are no children, this is an empty
       <span class="classname"><a href="class.domnodelist.html" class="classname">DOMNodeList</a></span>.
      </p>
     </dd>

    
    
     <dt id="domnode.props.firstchild"><var class="varname">firstChild</var></dt>

     <dd>

      <p class="para">
       The first child of this node. If there is no such node, this
       returns <strong><code>null</code></strong>.
      </p>
     </dd>

    
    
     <dt id="domnode.props.lastchild"><var class="varname">lastChild</var></dt>

     <dd>

      <p class="para">The last child of this node. If there is no such node, this returns <strong><code>null</code></strong>.</p>
     </dd>

    
    
     <dt id="domnode.props.previoussibling"><var class="varname">previousSibling</var></dt>

     <dd>

      <p class="para">
       The node immediately preceding this node. If there is no such
       node, this returns <strong><code>null</code></strong>.
      </p>
     </dd>

    
    
     <dt id="domnode.props.nextsibling"><var class="varname">nextSibling</var></dt>

     <dd>

      <p class="para">
       The node immediately following this node. If there is no such
       node, this returns <strong><code>null</code></strong>.
      </p>
     </dd>

    
    
     <dt id="domnode.props.attributes"><var class="varname">attributes</var></dt>

     <dd>

      <p class="para">
       A <span class="classname"><a href="class.domnamednodemap.html" class="classname">DOMNamedNodeMap</a></span> containing the
       attributes of this node (if it is a <span class="classname"><a href="class.domelement.html" class="classname">DOMElement</a></span>)
       or <strong><code>null</code></strong> otherwise.
      </p>
     </dd>

    
    
     <dt id="domnode.props.ownerdocument"><var class="varname">ownerDocument</var></dt>

     <dd>

      <p class="para">The <span class="classname"><a href="class.domdocument.html" class="classname">DOMDocument</a></span> object associated with this node, or <strong><code>null</code></strong> if this node is a <span class="classname"><a href="class.domdocument.html" class="classname">DOMDocument</a></span></p>
     </dd>

    
    
     <dt id="domnode.props.namespaceuri"><var class="varname">namespaceURI</var></dt>

     <dd>

      <p class="para">The namespace URI of this node, or <strong><code>null</code></strong> if it is unspecified.</p>
     </dd>

    
    
     <dt id="domnode.props.prefix"><var class="varname">prefix</var></dt>

     <dd>

      <p class="para">The namespace prefix of this node.</p>
     </dd>

    
    
     <dt id="domnode.props.localname"><var class="varname">localName</var></dt>

     <dd>

      <p class="para">Returns the local part of the qualified name of this node.</p>
     </dd>

    
    
     <dt id="domnode.props.baseuri"><var class="varname">baseURI</var></dt>

     <dd>

      <p class="para">
       The absolute base URI of this node or <strong><code>null</code></strong> if the implementation
       wasn&#039;t able to obtain an absolute URI.
      </p>
     </dd>

    
    
     <dt id="domnode.props.textcontent"><var class="varname">textContent</var></dt>

     <dd>

      <p class="para">The text content of this node and its descendants.</p>
     </dd>

    
   </dl>

  </div>


  <div class="section">
   <h2 class="title">更新日志</h2>
   <table class="doctable informaltable">
    
     <thead>
      <tr>
       <th>版本</th>
       <th>说明</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>8.0.0</td>
       <td>
        The unimplemented methods <span class="methodname"><strong>DOMNode::compareDocumentPosition()</strong></span>,
        <span class="methodname"><strong>DOMNode::isEqualNode()</strong></span>,
        <span class="methodname"><strong>DOMNode::getFeature()</strong></span>,
        <span class="methodname"><strong>DOMNode::setUserData()</strong></span> and
        <span class="methodname"><strong>DOMNode::getUserData()</strong></span> have been removed.
       </td>
      </tr>

     </tbody>
    
   </table>

  </div>


  <div class="section">
   <h2 class="title">注释</h2>
   <blockquote class="note"><p><strong class="note">注意</strong>: <p class="para">此 DOM 扩展采用 UTF-8 编码。使用 <span class="function"><a href="function.mb-convert-encoding.html" class="function">mb_convert_encoding()</a></span>、<span class="methodname"><a href="uconverter.transcode.html" class="methodname">UConverter::transcode()</a></span> 或 <span class="function"><a href="function.iconv.html" class="function">iconv()</a></span> 来处理其它编码。</p></p></blockquote>
  </div>



  <div class="section">
   <h2 class="title">参见</h2>
   <p class="para">
    <ul class="simplelist">
     <li class="member"><a href="http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-1950641247" class="link external">&raquo;&nbsp;W3C specification of Node</a></li>
    </ul>
   </p>
  </div>

 
 </div>
 
 




























































































 
<h2>目录</h2><ul class="chunklist chunklist_reference"><li><a href="domnode.appendchild.html">DOMNode::appendChild</a> — Adds new child at the end of the children</li><li><a href="domnode.c14n.html">DOMNode::C14N</a> — Canonicalize nodes to a string</li><li><a href="domnode.c14nfile.html">DOMNode::C14NFile</a> — Canonicalize nodes to a file</li><li><a href="domnode.clonenode.html">DOMNode::cloneNode</a> — Clones a node</li><li><a href="domnode.getlineno.html">DOMNode::getLineNo</a> — Get line number for a node</li><li><a href="domnode.getnodepath.html">DOMNode::getNodePath</a> — Get an XPath for a node</li><li><a href="domnode.hasattributes.html">DOMNode::hasAttributes</a> — Checks if node has attributes</li><li><a href="domnode.haschildnodes.html">DOMNode::hasChildNodes</a> — Checks if node has children</li><li><a href="domnode.insertbefore.html">DOMNode::insertBefore</a> — Adds a new child before a reference node</li><li><a href="domnode.isdefaultnamespace.html">DOMNode::isDefaultNamespace</a> — Checks if the specified namespaceURI is the default namespace or not</li><li><a href="domnode.issamenode.html">DOMNode::isSameNode</a> — Indicates if two nodes are the same node</li><li><a href="domnode.issupported.html">DOMNode::isSupported</a> — Checks if feature is supported for specified version</li><li><a href="domnode.lookupnamespaceuri.html">DOMNode::lookupNamespaceUri</a> — Gets the namespace URI of the node based on the prefix</li><li><a href="domnode.lookupprefix.html">DOMNode::lookupPrefix</a> — Gets the namespace prefix of the node based on the namespace URI</li><li><a href="domnode.normalize.html">DOMNode::normalize</a> — Normalizes the node</li><li><a href="domnode.removechild.html">DOMNode::removeChild</a> — Removes child from list of children</li><li><a href="domnode.replacechild.html">DOMNode::replaceChild</a> — Replaces a child</li></ul>
</div>
</div></div></body></html>